Determination of MCPA, Bromoxynil, 2, 4-D, Trifluralin, Triallate, Picloram, and Diclofop-Methyl in Soil by GC-MS Using Selected Ion Monitoring

Gary W Bruns, Susan Nelson, Dennis G Erickson

doi:10.1093/jaoac/74.3.550

Determination of MCPA, Bromoxynil, 2, 4-D, Trifluralin, Triallate, Picloram, and Diclofop-Methyl in Soil by GC-MS Using Selected Ion Monitoring

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Gary W Bruns

Enviro-Test Labs, 9936 67th Ave, Edmonton, Alberta T6E 0P5, Canada
Susan Nelson

Enviro-Test Labs, 9936 67th Ave, Edmonton, Alberta T6E 0P5, Canada
Dennis G Erickson

Enviro-Test Labs, 9936 67th Ave, Edmonton, Alberta T6E 0P5, Canada

書誌事項

公開日: 1991-05-01

権利情報

https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model

DOI

10.1093/jaoac/74.3.550

公開者: Oxford University Press (OUP)

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説明

<jats:title>Abstract</jats:title> <jats:p>A double space extraction procedure was developed to simultaneously determine neutral herbicides (trifluralin, dlclofop- methyl, and triallate) and acid herbicides (MCPA, 2,4-D, bromoxynil, and picloram) in soil. The method uses capillary column gas chromatography (GC) and mass spectrometry (MS) detection with a high degree of confidence in the interpretation of herbicides in many soil types to the 0.003 ppm level. Detection limits at these low levels are possible because extracts can be concentrated by a factor of 50 with few coextractlve interferences evident in the chromatography. Recovery data are excellent for both groups of herbicides (81.5-97.8%, average); relative standard deviations vary from 15-23% because of a larger response variation using GC/MS detection.</jats:p>